#!/usr/bin/node

const log  = console.log,
      info = process.argv[2];  //base64 content

if(process.argv.length !== 3) {
  console.error('命令行格式：cmd base64_string');
  process.exit(1);

}

let buf = new Buffer(info,'base64');
let usr = buf.toString('utf-8').split(':');

if(usr.length !== 2) {
  console.error('信息有误！');
  process.exit(2);

}

log(`user: ${usr[0]}`);
log(`info: ${usr[1]}`);
